炎热的夏季一到,某些动物耐不住高温,或者因为缺少食物和干旱等原因,便睡起“长觉”来。每当旱季来临河水干涸之时,生活在非洲的肺鱼就钻进淤泥里,用淤泥给自己造一间小屋,只留一个开口与外界相通,然后首尾相联地藏身在里面,利用它那发育不太完全的肺进行极其微弱的呼吸,维持生命所需。它们一觉就睡上6个月。当旱季过去、雨季到来,河里又有了水之后,它们才醒过来,从小泥屋里钻出来,在河水里畅游。 As soon as the hot summertime comes, some animals can not tolerate high temperatures, or because of lack of food and drought, they fall asleep. Whenever the dry season comes, the lungs of the lungs that inhabit Africa are drilled into the silt, creating a lodge for themselves with silt, leaving only one opening to communicate with the outside world and hiding behind in tandem Less developed lungs perform extremely weak breaths to sustain life. They sleep for six months at a time. When the dry season passed and the rainy season arrived and there was water in the river, they woke up, drilling out of the muddy house and swimming in the river.